Many lenders have their own proprietary ones, but the most widely - used are Fannie Mae's Desktop Underwriter (DU), and Freddie Mac's Loan Prospector (LP). (themortgagereports.com)
Unlike the HTC proprietary ones, the do goes included in the box work with other devices capable of outputting audio through their USB ports. (themrphone.com)
Otherwise Apple would use standard connections not proprietary ones. (technewsworld.com)